src/gallium/drivers/llvmpipe/lp_test_format.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28
  29 #include <stdlib.h>
  30 #include <stdio.h>
  31 #include <float.h>
  32
  33 #include "gallivm/lp_bld.h"
  34 #include "gallivm/lp_bld_init.h"
  35 #include <llvm-c/Analysis.h>
  36 #include <llvm-c/Target.h>
  37 #include <llvm-c/Transforms/Scalar.h>
  38
  39 #include "util/u_memory.h"
  40 #include "util/u_format.h"
  41 #include "util/u_format_tests.h"
  42 #include "util/u_format_s3tc.h"
  43
  44 #include "gallivm/lp_bld_format.h"
  45 #include "lp_test.h"
  46
  47
  48 void
  49 write_tsv_header(FILE *fp)
  50 {
  51    fprintf(fp,
  52            "result\t"
  53            "format\n");
  54
  55    fflush(fp);
  56 }
  57
  58
  59 static void
  60 write_tsv_row(FILE *fp,
  61               const struct util_format_description *desc,
  62               boolean success)
  63 {
  64    fprintf(fp, "%s\t", success ? "pass" : "fail");
  65
  66    fprintf(fp, "%s\n", desc->name);
  67
  68    fflush(fp);
  69 }
  70
  71
  72 typedef void
  73 (*fetch_ptr_t)(float *, const void *packed,
  74                unsigned i, unsigned j);
  75
  76
  77 static LLVMValueRef
  78 add_fetch_rgba_test(LLVMModuleRef lp_build_module,
  79                     const struct util_format_description *desc)
  80 {
  81    LLVMTypeRef args[4];
  82    LLVMValueRef func;
  83    LLVMValueRef packed_ptr;
  84    LLVMValueRef rgba_ptr;
  85    LLVMValueRef i;
  86    LLVMValueRef j;
  87    LLVMBasicBlockRef block;
  88    LLVMBuilderRef builder;
  89    LLVMValueRef rgba;
  90
  91    args[0] = LLVMPointerType(LLVMVectorType(LLVMFloatType(), 4), 0);
  92    args[1] = LLVMPointerType(LLVMInt8Type(), 0);
  93    args[3] = args[2] = LLVMInt32Type();
  94
  95    func = LLVMAddFunction(lp_build_module, "fetch", LLVMFunctionType(LLVMVoidType(), args, Elements(args), 0));
  96    LLVMSetFunctionCallConv(func, LLVMCCallConv);
  97    rgba_ptr = LLVMGetParam(func, 0);
  98    packed_ptr = LLVMGetParam(func, 1);
  99    i = LLVMGetParam(func, 2);
 100    j = LLVMGetParam(func, 3);
 101
 102    block = LLVMAppendBasicBlock(func, "entry");
 103    builder = LLVMCreateBuilder();
 104    LLVMPositionBuilderAtEnd(builder, block);
 105
 106    rgba = lp_build_fetch_rgba_aos(builder, desc, packed_ptr, i, j);
 107
 108    LLVMBuildStore(builder, rgba, rgba_ptr);
 109
 110    LLVMBuildRetVoid(builder);
 111
 112    LLVMDisposeBuilder(builder);
 113    return func;
 114 }
 115
 116
 117 PIPE_ALIGN_STACK
 118 static boolean
 119 test_format(unsigned verbose, FILE *fp,
 120             const struct util_format_description *desc,
 121             const struct util_format_test_case *test)
 122 {
 123    LLVMValueRef fetch = NULL;
 124    LLVMPassManagerRef pass = NULL;
 125    fetch_ptr_t fetch_ptr;
 126    float unpacked[4];
 127    boolean success;
 128    unsigned i;
 129
 130    fetch = add_fetch_rgba_test(lp_build_module, desc);
 131
 132    if (LLVMVerifyFunction(fetch, LLVMPrintMessageAction)) {
 133       LLVMDumpValue(fetch);
 134       abort();
 135    }
 136
 137 #if 0
 138    pass = LLVMCreatePassManager();
 139    LLVMAddTargetData(LLVMGetExecutionEngineTargetData(lp_build_engine), pass);
 140    /* These are the passes currently listed in llvm-c/Transforms/Scalar.h,
 141     * but there are more on SVN. */
 142    LLVMAddConstantPropagationPass(pass);
 143    LLVMAddInstructionCombiningPass(pass);
 144    LLVMAddPromoteMemoryToRegisterPass(pass);
 145    LLVMAddGVNPass(pass);
 146    LLVMAddCFGSimplificationPass(pass);
 147    LLVMRunPassManager(pass, lp_build_module);
 148 #else
 149    (void)pass;
 150 #endif
 151
 152    fetch_ptr = (fetch_ptr_t) LLVMGetPointerToGlobal(lp_build_engine, fetch);
 153
 154    memset(unpacked, 0, sizeof unpacked);
 155
 156    fetch_ptr(unpacked, test->packed, 0, 0);
 157
 158    success = TRUE;
 159    for(i = 0; i < 4; ++i)
 160       if (fabs((float)test->unpacked[0][0][i] - unpacked[i]) > FLT_EPSILON)
 161          success = FALSE;
 162
 163    if (!success) {
 164       printf("FAILED\n");
 165       printf("  Packed: %02x %02x %02x %02x\n",
 166              test->packed[0], test->packed[1], test->packed[2], test->packed[3]);
 167       printf("  Unpacked: %f %f %f %f obtained\n",
 168              unpacked[0], unpacked[1], unpacked[2], unpacked[3]);
 169       printf("            %f %f %f %f expected\n",
 170              test->unpacked[0][0][0],
 171              test->unpacked[0][0][1],
 172              test->unpacked[0][0][2],
 173              test->unpacked[0][0][3]);
 174       LLVMDumpValue(fetch);
 175    }
 176
 177    LLVMFreeMachineCodeForFunction(lp_build_engine, fetch);
 178    LLVMDeleteFunction(fetch);
 179
 180    if(pass)
 181       LLVMDisposePassManager(pass);
 182
 183    if(fp)
 184       write_tsv_row(fp, desc, success);
 185
 186    return success;
 187 }
 188
 189
 190
 191 static boolean
 192 test_one(unsigned verbose, FILE *fp,
 193          const struct util_format_description *format_desc)
 194 {
 195    unsigned i;
 196    bool success = TRUE;
 197
 198    printf("Testing %s ...\n",
 199           format_desc->name);
 200
 201    for (i = 0; i < util_format_nr_test_cases; ++i) {
 202       const struct util_format_test_case *test = &util_format_test_cases[i];
 203
 204       if (test->format == format_desc->format) {
 205
 206          if (!test_format(verbose, fp, format_desc, test)) {
 207            success = FALSE;
 208          }
 209
 210       }
 211    }
 212
 213    return success;
 214 }
 215
 216
 217 boolean
 218 test_all(unsigned verbose, FILE *fp)
 219 {
 220    enum pipe_format format;
 221    bool success = TRUE;
 222
 223    for (format = 1; format < PIPE_FORMAT_COUNT; ++format) {
 224       const struct util_format_description *format_desc;
 225
 226       format_desc = util_format_description(format);
 227       if (!format_desc) {
 228          continue;
 229       }
 230
 231       /*
 232        * TODO: test more
 233        */
 234
 235       if (format_desc->block.width != 1 ||
 236           format_desc->block.height != 1 ||
 237           format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS) {
 238          continue;
 239       }
 240
 241       if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC &&
 242           !util_format_s3tc_enabled) {
 243          continue;
 244       }
 245
 246       if (!test_one(verbose, fp, format_desc)) {
 247            success = FALSE;
 248       }
 249    }
 250
 251    return success;
 252 }
 253
 254
 255 boolean
 256 test_some(unsigned verbose, FILE *fp, unsigned long n)
 257 {
 258    return test_all(verbose, fp);
 259 }